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Title:The Reassigned Bandwidth-Enhanced Method of Additive Synthesis
Author(s):Fitz, Kelly Raymond
Doctoral Committee Chair(s):Haken, Lippold
Department / Program:Electrical Engineering
Discipline:Electrical Engineering
Degree Granting Institution:University of Illinois at Urbana-Champaign
Subject(s):Physics, Acoustics
Abstract:We introduce a highly manipulable, high fidelity additive sound model capable of representing transient sounds and sounds having significant nonsinusoidal energy. We represent sounds as a collection of bandwidth-enhanced partials having sinusoidal and noise-like characteristics. Partials are defined by a trio of synchronized breakpoint envelopes specifying the time-varying amplitude, center frequency, and noise content. Breakpoints for the partial envelopes are obtained by following ridges on a time-frequency surface computed by the method of reassignment. The Reassigned Bandwidth-Enhanced Model yields greater resolution in time and frequency than conventional additive techniques, and preserves noise-like and transient signals, even in modified reconstruction.
Issue Date:1999
Description:151 p.
Thesis (Ph.D.)--University of Illinois at Urbana-Champaign, 1999.
Other Identifier(s):(MiAaPQ)AAI9953014
Date Available in IDEALS:2015-09-25
Date Deposited:1999

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